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Hope someone can help? I've got a ms180 and it's playing up it will start fine run for 30 seconds then die! it will restart but as before 30 seconds and it will die again! I've stripped it cleaned it took the carb apart cleaned it but still the same.

Paul, I would have a look at the fuel pickup hose in the first instance, failing that the carb may need an ultrasonic clean and a refurb with new membranes and diaphragms as it sounds like it may be using up the choke fuel and is then unable to pull fuel through the main jet.

I had one a few weeks ago that I had the carb apart 3 times before getting it right.